<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<script src="https://unpkg.com/vue@next"></script>
<body>
    <div id="root"></div>    
</body>
<script>
    const app = Vue.createApp({
     data() {
         return {
            message:'world',
            message1: true,
            message2:[],
            message3:' '
         }
     },
     methods: {
         
     },
     template: `
     <div >
        {{message}}
        <input type="checkbox" v-model="message" true-value="hello" false-value="world">
        <input v-model.lazy="message" />
     </div> 
     `
    })

    const vm = app.mount('#root')
 </script>
</html>
<!-- 
true-value
false-value

lazy 修饰符  v-model.lazy
 -->